Online Keyboard Tester – Check If Your Keys Are Working Properly

Published: 13 Nov 2025

What Is a Keyboard Tester?

A keyboard tester is a simple online tool that shows which keys are working.
When you press any key, the same key lights up or changes color on the screen — so you can easily check if it’s working or not.

It’s completely free and doesn’t need any installation.

How to Use the Keyboard Tester

  1. Open the Keyboard Tester Tool on your screen.
  2. Press any key — if it lights up, the key is working fine.
  3. Check all keys one by one, including spacebar, enter, and arrow keys.
  4. If a key doesn’t respond, clean your keyboard or reconnect it.
  5. For laptop users, make sure Num Lock or Function Lock is turned off.

Why Use This Tool?

  • Helps you find stuck or dead keys instantly.
  • Useful for testing new keyboards or laptop keyboards.
  • Works on all browsers — no software needed.
  • 100% free and easy to use
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